WO2019063332A1 - Dispositif d'éclairage pour véhicules - Google Patents
Dispositif d'éclairage pour véhicules Download PDFInfo
- Publication number
- WO2019063332A1 WO2019063332A1 PCT/EP2018/075038 EP2018075038W WO2019063332A1 WO 2019063332 A1 WO2019063332 A1 WO 2019063332A1 EP 2018075038 W EP2018075038 W EP 2018075038W WO 2019063332 A1 WO2019063332 A1 WO 2019063332A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- lighting device
- cover
- hologram element
- diffraction order
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 238000000926 separation method Methods 0.000 claims 1
- BLFQGGGGFNSJKA-XHXSRVRCSA-N sertraline hydrochloride Chemical compound Cl.C1([C@@H]2CC[C@@H](C3=CC=CC=C32)NC)=CC=C(Cl)C(Cl)=C1 BLFQGGGGFNSJKA-XHXSRVRCSA-N 0.000 claims 1
- 238000005286 illumination Methods 0.000 description 8
- 239000003550 marker Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
- F21S41/125—Coloured light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/24—Light guides
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/0252—Diffusing elements; Afocal elements characterised by the diffusing properties using holographic or diffractive means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/32—Holograms used as optical elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
Definitions
- the invention relates to a lighting device for vehicles with a closed by a transparent cover housing containing a light source unit and an optical unit for generating a predetermined light function, wherein the optical unit comprises a hologram element and / or a Difflegktivelennent in which diffraction information for generating the light function are included.
- a lighting device for vehicles with a housing in which a light source unit and an optical unit for generating a predetermined light function are arranged.
- a front opening of the housing is closed by a cover.
- the optical unit has a hologram element in which diffraction information for generating the light function is included.
- the hologram element backlit by the light source unit deflects the light impinging on it in accordance with the impressed diffraction structures.
- the hologram element Since the light hitting the hologram element diffracts into light of different orders of diffraction, where the zeroth diffraction light is undiffracted light and light of higher diffraction orders is correspondingly more diffracted light, one possibility is to form the hologram element such that nearly 100 % of the light in the first diffraction order lossless to generate the light function is used.
- this requires complex calculation methods and complex manufacturing processes.
- These hologram elements also have a relatively high wall thickness. This requires higher demands on the bandwidth of the light source unit and tolerances of the entire lighting device.
- a hologram image display device for playing three-dimensional video images is known, according to which the image quality is to be improved by removing a zeroth diffraction order of the light.
- a hologram arrangement is not applicable to lighting devices for vehicles.
- Object of the present invention is to develop a lighting device for vehicles with an optical unit containing a hologram element and / or a diffractive element with diffraction information for generating a predetermined light function such that the different light functions can be generated in a simple manner.
- the invention is characterized in that the optical element and / or the diffractive optical element downstream of the hologram element and / or the diffractive element of different diffraction orders produce different light functions or illumination areas from the hologram element and / or the diffractive element.
- the particular advantage of the invention is that several light functions can be generated by utilizing different diffraction orders of the light emerging from a hologram element and / or a diffractive element.
- the basic idea of the invention is to use the light emitted in different directions of the different diffraction orders for a plurality of light functions or illumination areas, wherein preferably light of different diffraction orders is used for different light functions, preferably for a main illumination area and a side illumination area.
- the hologram element or the diffractive element has corresponding diffraction information.
- a cover covering the lighting device is designed accordingly, that different light functions can be displayed.
- the hologram element and / or the diffractive element and the cover is designed such that the first order diffraction light for a high-intensity light function or a Hauptausleucht Scheme and the light second and / or higher diffraction order for a faint additional light function or a side illumination area is used.
- the light of the first diffraction order can be added.
- the light of the second diffraction order for a relatively faint tail light function or side marker light function can be used or it will be generated for a light function different bright footprints or an area increase obtained by the additional lateral footprint.
- the hologram element and / or the diffractive element is designed such that the light first diffraction order in the direction of a front wall of the cover and the light second and / or higher diffraction order hits a perpendicular to the front wall side wall ,
- this allows a spatial delimitation of the different light functions.
- the front wall and the side wall of the cover are provided with a scattering optics or scattering structure or another diffractive optics, in particular a diffractive diffusor optics, so that the light for the corresponding light functions can be scattered.
- the light source unit and the hologram element or the diffractive element and the cover are formed elongated.
- a line-shaped lighting device can thereby be provided which has a relatively narrow exit surface.
- a height of the hologram element or of the diffractive element is smaller than a height of the cover frame.
- this allows the light of different diffraction orders to hit different walls of the cover.
- the cover extends with opposite side walls of a plane of the body Opening the vehicle out.
- a three-dimensional cover plate can thus be created within which space is created for an example floating light function.
- the cover is colored red, so that it can be used as a tail light for vehicles.
- Fig. 1 is a vertical section through a lighting device according to the invention.
- Fig. 2 is a side view of a conventional hologram element with different diffraction orders.
- a lighting device according to the invention for vehicles can be used in particular as a tail light.
- the lighting device may also be arranged in a bow region of the vehicle in a headlight.
- the light can also be arranged inside the vehicle for animation purposes.
- the lighting device has a housing 1, in which a light source unit 2 and an optical unit 3 are arranged for generating a plurality of light functions. A front opening of the housing 1 is closed by a red-colored cover 4.
- the lighting device is elongated.
- the light source unit 2 has a plurality of light sources 5 and the primary associated therewith. Tiken 6, which extend in the extension direction of the lighting device - substantially perpendicular to the sheet plane of Figure 1 -.
- the light sources 5 are designed as semiconductor-based light sources, in particular as LED light sources.
- the light sources 5 can be arranged on a common printed circuit board.
- the light source unit can also have an elongate light guide in the direction of extension of the illumination device, on whose end faces the light sources 5 are arranged.
- This light guide has outcoupling elements, so that the light coupled in by the light sources can be coupled out in the main emission direction H.
- the optical unit 3 essentially comprises a hologram element 7, which is arranged at a distance from the light source unit 2.
- the hologram element 7 is elongated and extends substantially in the extension direction of the illumination device, parallel to the light source unit 2.
- the hologram element 7 may be formed as a volume hologram element, for example in the form of an emulsion or a film.
- the hologram element 7 may be preformed by deep drawing, so that it is over-molded as an insert in an injection mold with a transparent material that forms the flat and transparent support.
- the carrier is transparent, for example formed as a lens.
- the carrier of the hologram element 7 may be fastened, for example, on a holder of the housing 1, not shown.
- the hologram element 7 is formed as a volume transmission hologram element.
- the hologram element 7 can also be designed as a volume reflection hologram element.
- the optical unit 3 has a corresponding reflector, which is positioned in such a way that the light emitted by the hologram element 7 can run in the main emission direction H.
- the cover 4 is formed trough-shaped with a front in the main emission direction H front wall 8 and with the front wall 8 substantially perpendicular projecting side walls 9, which extend in particular up to an opening edge 10 of the housing 1.
- the cover 4 is formed elongated.
- the side walls 9 are disposed in a region remote from the front wall 8 immediately adjacent to an opening edge of the body.
- the cover 4 is thus raised to the body. It rises from a plane of the body opening of the vehicle so that it has a three-dimensional contour curve outside the vehicle. In the region of the body opening edge or opening edge 10 of the housing 1, the cover 4 has a height h A , which is greater in comparison to a height h B of the hologram element 7.
- the cover 4 surrounds an interior 1 1, which can be used to generate one or more light functions.
- the front wall 8 associated with the hologram element 7 downstream of the hologram element 7 has scattering optics 12 as optical means such that light 7 of the first diffraction order is scattered by the hologram element 7 on the scattering optics 12 to produce a brake light function in a main easy range.
- the hologram element 7 is structured in such a way that the light 13 of first diffraction order is radiated essentially in the main emission direction H or in the direction of the front wall 8.
- the hologram element 7 is structured in such a way that light 14 of second diffraction order is emitted laterally downwards to form a lower side wall 9 '.
- This side wall 9 'of the cover 4 has, as optical means, scattering optics 15, at which the light 14 is scattered in such a way that it serves to generate a side marker light function in a side illumination area.
- a homogeneous holographic light signature can be formed within the cover 4, which runs quasi-floating.
- the light 13 of the first diffraction order is given a glare associated with the device 13, which reads through or absorbs the light 13 in response to the presence of a Bremsak-.
- a diffractive element can also be arranged, which likewise has structures of the order of magnitude of the wavelength of light, so that light diffraction can take place on these structures.
- a diffraction structure is impressed according to a predetermined spectral geometric intensity distribution function.
- the diffraction information can be generated by interference of the laser beams (object and reference beam) in writing the hologram element 7 by small differences in the refractive time. Molecules or molecular chains in the photopolymer layer are aligned in a defined manner in accordance with the desired holographic light pattern.
- the cover 4 may also be multi-colored, in particular red and white on the one hand, red and light red on the other hand, or red and gray a phenomenon be formed.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
L'invention concerne un dispositif d'éclairage conçu pour des véhicules, comprenant un logement (1) fermé par une plaque de recouvrement (4) transparente et renfermant un ensemble source lumineuse (2) et un système optique (3) pour générer une fonction lumineuse prédéfinie. Le système optique (3) comprend un élément holographique (7) et/ou un élément diffractif renfermant des informations d'éclairage pour générer la fonction lumineuse. Des moyens optiques sont montés en aval de cet élément holographique (7) et/ou élément diffractif, en aval du flux lumineux, de manière que la lumière (13, 14), présentant différents ordres de diffraction, sortant de cet élément holographique (7) et/ou élément diffractif, génère différentes fonctions lumineuses.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201880062532.4A CN111164347B (zh) | 2017-09-26 | 2018-09-17 | 用于车辆的照明设备 |
US16/831,013 US10955104B2 (en) | 2017-09-26 | 2020-03-26 | Lighting apparatus for vehicles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017122213.8 | 2017-09-26 | ||
DE102017122213.8A DE102017122213A1 (de) | 2017-09-26 | 2017-09-26 | Beleuchtungsvorrichtung für Fahrzeuge |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/831,013 Continuation US10955104B2 (en) | 2017-09-26 | 2020-03-26 | Lighting apparatus for vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019063332A1 true WO2019063332A1 (fr) | 2019-04-04 |
Family
ID=63708307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2018/075038 WO2019063332A1 (fr) | 2017-09-26 | 2018-09-17 | Dispositif d'éclairage pour véhicules |
Country Status (4)
Country | Link |
---|---|
US (1) | US10955104B2 (fr) |
CN (1) | CN111164347B (fr) |
DE (1) | DE102017122213A1 (fr) |
WO (1) | WO2019063332A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021114021A1 (de) | 2021-05-31 | 2022-12-01 | HELLA GmbH & Co. KGaA | Beleuchtungsvorrichtung für Fahrzeuge |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5495227A (en) * | 1993-11-16 | 1996-02-27 | Hughes Aircraft Company | Multiple format holographic CHMSLS |
DE102006030503A1 (de) * | 2006-07-01 | 2008-01-03 | Seereal Technologies S.A. | Vorrichtung zur Selektion von Licht einer Beugungsordnung |
DE102011051735A1 (de) | 2010-08-31 | 2012-03-01 | Lg Display Co., Ltd. | Digitale Hologramm-Bildwiedergabevorrichtung |
DE102015102243A1 (de) * | 2015-02-17 | 2016-09-01 | Hella Kgaa Hueck & Co. | Beleuchtungsvorrichtung für Fahrzeuge |
DE102015115128A1 (de) | 2015-09-09 | 2017-03-09 | Hella Kgaa Hueck & Co. | Beleuchtungsvorrichtung für Fahrzeuge |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5347435A (en) * | 1992-12-22 | 1994-09-13 | Hughes Aircraft Company | Linear lamp holographic trapped beam center high mounted stoplight |
GB2499579B (en) | 2012-02-07 | 2014-11-26 | Two Trees Photonics Ltd | Lighting device |
TWI464340B (zh) * | 2012-03-15 | 2014-12-11 | Univ Nat Yunlin Sci & Tech | Direct LED front fog lamps |
JP6411771B2 (ja) * | 2014-04-16 | 2018-10-24 | 株式会社小糸製作所 | 車両用灯具 |
DE102014117842A1 (de) * | 2014-12-04 | 2016-06-09 | Hella Kgaa Hueck & Co. | Zusatzbremsleuchte für Fahrzeuge |
-
2017
- 2017-09-26 DE DE102017122213.8A patent/DE102017122213A1/de active Pending
-
2018
- 2018-09-17 CN CN201880062532.4A patent/CN111164347B/zh active Active
- 2018-09-17 WO PCT/EP2018/075038 patent/WO2019063332A1/fr active Application Filing
-
2020
- 2020-03-26 US US16/831,013 patent/US10955104B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5495227A (en) * | 1993-11-16 | 1996-02-27 | Hughes Aircraft Company | Multiple format holographic CHMSLS |
DE102006030503A1 (de) * | 2006-07-01 | 2008-01-03 | Seereal Technologies S.A. | Vorrichtung zur Selektion von Licht einer Beugungsordnung |
DE102011051735A1 (de) | 2010-08-31 | 2012-03-01 | Lg Display Co., Ltd. | Digitale Hologramm-Bildwiedergabevorrichtung |
DE102015102243A1 (de) * | 2015-02-17 | 2016-09-01 | Hella Kgaa Hueck & Co. | Beleuchtungsvorrichtung für Fahrzeuge |
DE102015115128A1 (de) | 2015-09-09 | 2017-03-09 | Hella Kgaa Hueck & Co. | Beleuchtungsvorrichtung für Fahrzeuge |
Also Published As
Publication number | Publication date |
---|---|
US10955104B2 (en) | 2021-03-23 |
CN111164347B (zh) | 2022-05-03 |
US20200224845A1 (en) | 2020-07-16 |
DE102017122213A1 (de) | 2019-03-28 |
CN111164347A (zh) | 2020-05-15 |
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